WeebPaint

WeebPaint — a free, open-source drawing app for anime and illustration — on iPad, PC, and phone. No account, no install — and a cloud-synced gallery you control.

Source code on GitHub

参考

选个图当参考

＋ 导入 / 更多操作 · 左上角点阵 = 拖动窗口

单指拖移 / 双指 pinch + 旋转 / 双击适应 / 长按吸色
100% 2048×2048 就绪